<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core_1_1" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>购物车</title>
<base href="http://localhost:8080/book/">
<link type="text/css" rel="stylesheet" href="static/css/style.css" >
</head>
<body>
	<div id="header">
			<img class="logo_img" alt="" src="static/img/logo.gif" >
			<span class="wel_word">购物车</span>
		<%--静态包含，登录，成功之后的菜单--%>
		<%@include file="/pages/common/login_success_menu.jsp"%>
		<%--静态包含base标签、css样式、jQuery文件--%>
		<%@include file="/pages/common/head.jsp"%>
		<script type="text/javascript">
				$(function () {
					//给删除绑定单机事件
					$("a.deleteItem").click(function () {
						return confirm("你确定要删除【"+$(this).parent().parent().find("td:first").text() +"】吗")
                    });

					//给清空购物车绑定单击事件
					$("#clearCart").click(function () {
                        return confirm("你确定要清空购物车吗")
                    });
					//给输入框绑定onblur失去焦点事件 ===onchange内容发送改变事件
					$(".updateCount").change(function () {
					    //获取商品名称
						var name=$(this).parent().parent().find("td:first").text();
						var id=$(this).attr('bookId');
						//获取商品数量
						var value=this.value;
						if(confirm("你确定要将【"+name+"】商品修改数量为："+value+"？")){
						    //发起请求给服务器保存修改
							location.href="http://localhost:8080/book/cartServlet?action=updateCount&count="+value+"&id="+id;

						}else{
						    //defaultValue属性是表单项Dom对象的属性，它表示默认的value属性值
						    this.value=this.defaultValue;
						}

                    });
                });
		</script>
	</div>
	
	<div id="main">
		<table>
			<tr>
				<td>商品名称</td>
				<td>数量</td>
				<td>单价</td>
				<td>金额</td>
				<td>操作</td>
			</tr>
			<c:if test="${empty sessionScope.cart.items}">
				<%--如果购物车为空的情况--%>
				<tr>
					<td colspan="5"><a href="index.jsp"> 亲，当前购物车为空,快跟小伙伴去浏览商品吧</a></td>
				</tr>
			</c:if>

			<c:if test="${not empty sessionScope.cart.items}">
				<%--如果购物车非空的情况--%>
				<c:forEach items="${sessionScope.cart.items}" var="entry">
					<tr>
						<td>${entry.value.name}</td>
						<td>
							<input class="updateCount" style="width: 80px"
								   bookId="${entry.value.id}"
								   type="text" value="${entry.value.count}">
						</td>
						<td>${entry.value.price}</td>
						<td>${entry.value.totalPrice}</td>
						<td><a class="deleteItem" href="cartServlet?action=deleteItem&id=${entry.value.id}">删除</a></td>
					</tr>

				</c:forEach>
			</c:if>


		</table>
		<%--如果购物车非空才输出下面的内容--%>
		<c:if test="${not empty sessionScope.cart.items}">
			<div class="cart_info">
				<span class="cart_span">购物车中共有<span class="b_count">${sessionScope.cart.totalCount}</span>件商品</span>
				<span class="cart_span">总金额<span class="b_price">${sessionScope.cart.totalPrice}</span>元</span>
				<span class="cart_span"><a id="clearCart" href="cartServlet?action=clear">清空购物车</a></span>
				<span class="cart_span"><a href="orderServlet?action=createOrder">去结账</a></span>
			</div>
		</c:if>

	
	</div>
	<%--静态包含页脚内容--%>
	<%@include file="/pages/common/foot.jsp"%>
</body>
</html>